Merge pull request #756 from datacite/cache_graphql_response

Cache graphQL response to improve Commons User Experience

app/controllers/graphql_controller.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 class GraphqlController < ApplicationController
+  include Cacheable
   before_action :authenticate_user!
 
   def execute
@@ -11,12 +12,8 @@ def execute
       tracing_enabled: ApolloFederation::Tracing.should_add_traces(headers),
       current_user: current_user,
     }
-    result =
-      LupoSchema.execute(
-        query,
-        variables: variables, context: context, operation_name: operation_name,
-      )
-    render json: ApolloFederation::Tracing.attach_trace_to_result(result)
+    result = cached_graphql_response(query, variables, context, operation_name)
+    render json: result
   rescue StandardError => e
     raise e unless Rails.env.development?
 

app/models/concerns/cacheable.rb

@@ -65,6 +65,23 @@ def cached_prefix_response(prefix, _options = {})
       end
     end
 
+    def cached_graphql_response(query, variables, context, operation_name)
+      hash = Base64.encode64(query.to_json + variables.to_json + context.to_json + operation_name.to_json)
+      if Rails.application.config.action_controller.perform_caching && !variables[:id].nil?
+        Rails.cache.fetch("akita_response/#{hash}", expires_in: 24.hours) do
+          LupoSchema.execute(
+            query,
+            variables: variables, context: context, operation_name: operation_name,
+          ).to_json
+        end
+      else
+        LupoSchema.execute(
+          query,
+          variables: variables, context: context, operation_name: operation_name,
+        )
+      end
+    end
+
     def cached_resource_type_response(id)
       Rails.cache.fetch("resource_type_response/#{id}", expires_in: 1.month) do
         resource_type = ResourceType.where(id: id)